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Transcript
1. Find the current through a 12-ohm resistive circuit when 24 volts is applied. 2. Find the resistance of a circuit that draws 0.06 amperes with 12 volts applied. 3. Find the applied voltage of a circuit that draws 0.2 amperes through a 4,800-ohm resistor. 4. Find the applied voltage of a telephone circuit that draws 0.017amperes through a resistance of 15,000 ohms. 5. A 20-volt motor has a coil resistance of 200 ohms. How much current does it draw? 6. A series circuit has 1200-ohms of total resistance with 12 V as the power supply. What is the total current of this circuit? 7. A transformer is connected to 120 volts. Find the current if the resistance is 480 ohms? 8. A resistive load of 600-ohms is connected to a 24 V power supply. Find the current through the resistor. 9. A circuit consists of a 12 V battery connected across a single resistor. If the current in the circuit is 3 A, calculate the size of the resistor. 10. If a small appliance is rated at a current of 10 amps and a voltage of 120 volts, the power rating would be ______ Watts. (P = I V ) 11. If a blender is plugged into a 110 V outlet that supplies 2.7 A of current, what amount of power is used by the blender? 12. If a clock expends 2 W of power from a 1.5 V battery, what amount of current is supplying the clock? 13. Dr. Oz runs his juicer every morning. The juicer uses 90 W of Power and the current supplied is 4.5 A. How many volts are necessary to run the juicer? 14. Juan Pablo’s hair dryer requires 11A of current from a 110 V outlet. How much power does it use?